Adjustable roller for woodworking-machines



(No Model.) 2 sheets-sum1.

o'. o. M'OOK. ApJUsTABLB ROLLERFOR 'WoopwoRKING MACHINES. No'. 504,932.Patented Sept. 1 2', 1893.

(No Model.)

` 2 sheets-fsheet `2. C. 0. MOOK. ADJUSTABLE ROLLER FOR WOODWORKINGMACHINES.

No. 504,932. Patented Sept. 12, 1893.

UNITED STATES PATENT OEEICE.Y

CHARLES O. MOOK, OF KANSAS CITY, MISSOURI.

ADJUSTABLE ROLLER FOR WOODWORKING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 504,932, datedSeptember 12, 1893..

Application filed August 1, 1892. l Serial No. 441,892. (No model.)

Tov all whom it may concern:

Be it known that I, CHARLES O.MooK, of

,Kansas City, Jackson county, Missouri, have invented certain new anduseful Improvements in Adjustable Rollers for Woodworking-Machines, ofwhich the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in appliances for supportingboards, pieces of timber and various other classes of stock in operativeposition relative to planers, borers, saws, and various other kinds ofwood-working machines.

The objects of my invention are to produce an appliance which shall besimple, strong, durable and inexpensive in construction, very easy tomanipulate, and capable of being readily and very accurately adjusted soas to meet all of the requirements as to position and changes ofposition of the Work relative to the operative mechanism of woodworkingmachines while the Work is being operated upon by the machines.

To the above purposes my invention consists in certain peculiar andnovel features ofconstruction and arrangement as hereinafter describedand claimed.

In order that my invention may be fully understood, I will proceed todescribe it with reference to the accompanying drawings, in which-,u

Figure l is a side elevation of the revoluble type of my adjustablesupport. Fig. 2 is a plan view of the same. Fig. 3 is a transversevertical section of the same on the line 3-3 of Fig. 2. Fig. 4 is avertical section of the same on the line 44 of Fig. 2; the plane of thissection being at a right angle to the plane of the section of Fig. 3.Fig. 5 is a view t partly in side elevation and partly in transversevertical section of a stationary form of my support. Fig. 6 is adetached perspective View of one form of the supporting roller and ofthe adjacent ends of the two carrying arms therefor; said armsbeingprovided With enlarged ends serving as lateral guides for thestock. Y y

Referringnow to the accompanying draw` ings and more` particularly toFigs. l, 2, 3, and

4, l designates a horizontal bar or beam which may be of any suitable orpreferred length and width, and which may also be either of wood or ofmetal as preferred. At its ends this beam or bar is supported by anumber of oblique divergent legs 2, which are arranged in pairs atopposite ends of the bar or beam as shown, and which also may be eitherof wood or of metal and of any suitable length and height, ascircumstances may demand.

The bar or beam 1 and its supports or legs 2 constitute a horse ortrestle and in these ligures to which particular reference is now made,a base-plate 3 is shown as mounted upon the-bar or beam 1 about midwayof the length of the same, and provided, with lugs or ears 4: throughwhich are passed screws or bolts 5 for securing the base-plates 3 inhorizontal position upon the bar or beam 1. This base plate 3constitutes the base of aturn-table and is preferably of circular formin marginal contour and is also preferably formed of a single casting orpiece. Immediately above the base-plate is mounted a cap 6 of theturn-table, this cap also occupying a horizontal position andcorrespondingin form and dimensions with the base 3. The cap 6 is formedcentrally with a vertically pendent pivot 7 which extends downwardthrough a corresponding opening in the center of the base 3 and alsothrough the adjacent portion of the bar or beam l.` The lower endportion of this pivot 7 is. reduced to extend through a bearing-cap 8which is located in contact with the under side of the bar or beam 1 andthe lower extremity of this reduced portion of the pivot 7 is externallyscrew-threaded to receive a nut 9 which abuts against the under side ofthe cap 8 and thus retains the cap and turn-table in proper relativeposition upon the base of the turn-table.

Upon the upper side of the base 6 of the turn-table, is formed orsuitably secured an elongated horizontal bar l0; this bar being shown assecured to the top of the turn-table by a pair of nuts 1l which aresecured upon theupper ends of a pair of bolts l2; the said boltsprojecting upward from the base 3 of the turn-table, and being locatedat opposite sides of the end portions of the bar. It is to beunderstoodthat the bar l() may be either series from the upper to thelower end of` Y 4their area as shown, and being preferably of varyingdegrees of width, that is to say, in spaces between the lower teeth ofthe series or those teeth which are formed upon the end of the bar 10,are of greater width while the Y spaces between the teeth whichareformed uponthe inner side of the extension 13 are of less. wid th, andthese spaces. may be of varying widths, so that varying degrees oftine.- ness of adjustment may be readily attained as. hereinafter fullyexplained.r It is to be understood that while` these teeth may be of thevariable character just explained, they may, if preferred all be ofuniform character without departing fromv the -essential spiritl of myinvention.

Upon the opposite end of the bar 10 from that which carries theextension 13, is formed a second extension 15 which is preferablyintegra-l with the bar 10. From this standard 15 project oppositely twolateral trunnions 16: through which extends longitudinally a pivot bolt17,; one end of this bolt being ex-4 ternally screw-threaded to receivea retaining nutl 18.

L9Y designates two. carrying arms each of which may be of 'IT-form incross-section, as shown,y and the rear endof each of which looselysurround-sone end. of the pivot-bolt 17 just` referred to. Thesecarrying arms 19 are ofv any suitable or preferred length, but areshown. for purposesof illustration,l as of Somewhat. less. length thanthe distance from the upper end of the` extension 13 to the oppositeextremity of the bar 10, The outer or free end portions. of thesecarrying arms are: also shownA7 as curved lateral-1y away fromeachother, and between the outer ends of these arms is. jourualed thesupporting roller 2.0. The ends of the roller 2O turn freely in` theOuter or free ends 0f the carryingfarm. rljhis roller and. certainpeculiarities inf the construction. of the outer or free ends of thesecarrying-arms will `be hereinafter fully explained. Y.

Between the twocarrying-arms 19 is interposed a. crossftrunnion-bar 21through which extends longiftudinallya pivot bolt 22;. asuitableretaining-nut 23 being screwed upon one endet' this retainingbolt, and`the enlarge- 4ments 2.2, being formedpreferably nearer the outer or freeends of the carrying-arms 19, as shown.

From the trunnion-loar` at a point midway of the length 0f the same,extends forwardly an arm 24 which is preferably formed integrally withthe, trunnion-bar. Through the outer portion of this arm 24 extendslongitudinally an adjusting-rod or screw 25 the front end of whichcarries a toothedhead 26,

. the tip of which engages with one or another of the teeth 14, beforedescribed. The rear portion of this screw-rod is externallyscrewthread-ed toreceive an adjusting nut 27 which works between twoprojections 28 of the arm 24.

In Figs. 1, 2,3, and 4, the roller 20 is shown as serrated provided withspike-like protuberances 2Oa upon its outer surface, and at its ends therollerj is shown as being equal in diameter to the width of the outerends of the carrying-arms 19.

In Figs. 5 and 6 the roller 20 is shown as formed with a. perfectlysmooth surface and the outer ends of the carryingarms 19 are shown asformed with upwardly extending enlargements. 29; the purposes ofl theseprotuberances and projections 2.9 being hereinafter explained. Moreover,in Fig. 5 the crosstrunniou-bar 21 is shown as provided with an arm- 30the frontendof which is4 formed with a toothed-head 31; the tip of thishead engagingy the ratchet teeth 14 and the adjustable head or dog 26vand its screw-rod and adjust,- ing nut being dispensed with.

In Fig. 3, the upper surface of the lower turn-table member and theunder surface of the upper turn-table `member are shown as perfectlyflat or plane in form so that they work in contact with each otherthroughout a their'area, In- Fifg. 4, however, the upperand lower,surfaces respectively of the: lower'andl upper turn-table member areshown as formed with: registerm g circula-r grooves 41 within which areplaced a suitable number of anti.-V

the application is being employed in connec tion wit-l1 borinfg-machinesand similar ma.-V

chi-nes.

With planing-machines, boring-machines and the like, the stationary formof support. shown; i-n Fig. 5 is preferably employed,.whilethe-.turu-table type of appliance isy used with IOO sawing-machines andthe like- Itis to be un- V derstood also,I that when the appliance istobe used with sawing-.machines the adjustable dog is not used, theappliance havi'nga planeto construct two or'more types of themachineg..the one being a stationary machine, as shown.;

in; Fig. 5 (without a turn-tableiandgtheother beingxarevolublemachineas. j shown in4 the. other figures, either of these machines hav ing anadjustable head 26 and its attachments or merely a plane arm 30 and itshead:

I will first describe the operation of the machine in connection with aboring-machine. One ofthe appliances `is set at each side of the machineand the roller 2O is adj usted to precisely the height required tosupport the beam or stock properly beneath the boring tool. The bar orbeam is now laid upon the rest or bed of the machine and is supportedatv its ends upon the rollers 20 of the two appliances. The boring toolis now brought down upon the stock in the usual manner and the requiredaperture or hole is made in the usual manner, after which itwill be seenthat the stock can be readily moved along until the required place inthe stock for the formation of a second aperture or socket reaches theboring-tool. It will be obvious from this description that all necessityof the workman raising the stock bodily is avoided and that the stockissupported much more steadily and securely than it could possibly besupported by the hands of one or more workmen.

Now I will describe the operation of the appliances when used inconnection with a planing-machine. One of the supporting appliances isplaced at one end of the planer and the other atA the opposite end ofthe planer. In this class of work it is absolutely necessary forelectiveness of execution that the boards or stock to be planed shall beset at precisely the required height relative to the cutter of theplaner, so that only so much material shall be removed as shall renderthe surface smooth but without extravagant Waste ofV stock. Therefore,before commencing operation, ihe adjusting screw 27 is turned so as tomove the head 26 a greater or less distance, a variation ofone-sixteenth of an inch being thus easily attainable. j Both rollersare 4 thusset in exact accordance with each other and the boards orstock is run through the machine in the usual manner; one roller 2Osupporting one end portion of the stock and the roller 20 of the otherappliance supporting the opposite end of the stock.

I will 4iinall y describe my appliance as used in connection withcross-saws and rip-saws. Two of the appliances are used in thisinstance, one being placed at each side of the bed of the rip-saw. Thestock lis supported by the two rollers of the two appliances and ispassed through the rip-sawing machine in the usual manner thus cuttingthe stock into suitable Widths. The widths of stock are now piled uponthe roller of one of myA appliances and this roller is quickly swungaround horizontally so as to extend at right angles to its formerposition, so as to bring the stock in proper position relative to thecross-saw to be cut thereby. In this instance the serrated rollers areused and the side guides or projections are also used, the serrations ofthe rollers biting into the stock sufficiently to prevent slipping ofthe stock on the rollers, and the side guides preventing any dislocationof the stock from the rollers during the swingingof the stock from onesaw to 'the other. From the above description it will be seen that Ihave produced a supporting appliance for Woodworking machines, which issimple, strong, durable, and inexpensive in construction and which iscapable of eective operation in connection -with wood-working machinesof a great variety of types and which obviates most of the laborheretofore involved in handling such stock; the appliance furthermore,being capable of supporting the stock steadily and accurately. i

I'desire it to be understood that while I have stated that theappliances are intended for woodworking machinery and while such isprincipally the case, they may with very slight alterations be adaptedto metal Work and various other similarclasses of work.

Having thus described my invention, what I claim as new therein, anddesire to secure by Letters Patent, is

1. lA supporting appliance for woodworking machinery, comprising asuitable supporting framework, a pair of carrying-armsmounted pivotallyupon said supporting framework, a supporting roller mounted between saidarms; a series of ratchet-teeth carried by the upper portion of thesupporting framework'a-nd a pivotal adjusting arm carried between thesaid carrying `arms and engaging with said ratchet-teeth, substantiallyas set forth.

2. A supporting appliance for woodworking machinery, comprising asuitable framework, a `pair of carrying-arms mounted pivotally upon saidsupporting framework, a supporting roller carried between said arms, anadjustable supporting-arm secured pivotally to said carrying-arms andhaving an adjustable head, an' adjusting-nut for said head anda seriesof ratchet-teeth engaged by the adj ustable head and carried by theupper part ofthe supporting framework, substantially as set forth.

3. A supporting appliance for woodworking machinery, comprising asuitable supporting framework, a pair of roller-carrying-arms pivotallymounted upon said frameworkga pivotal adjusting-arm carried by the saidcarrying-arms and having an adjustable head, and an adjusting-nutcarried by the'stern o'r rod of the adjustable head, substantially asset forth. j

4E. `A supporting appliance for wood-working machinery, comprising asuitablesupporting frame-work, a longitudinally extending baseplatesecured upon said frame-work, alongitudinally extending ba'r formed uponsaid base-plate or secured thereon, and having an extension at each end,aseries of teeth formed in the upper side of one of said extensions andupon the upper sideof the longitudinally IOO a bolt connecting saidparallel arms, and an arm pivoted on said bolt, and having a toothedhead vadapted to engage the teeth on the upper sides of thelongitudinally extending bar and the extension therefrom, substantiallyas set forth.

5. A supporting appliance for Wood-working machinery, comprising asuitable frame-work, a stationary base-plate mounted upon saidframe-Work, and having a circular body-portion,a revoluble top-platemounted upon said base-plate having a centrally depending pivot passingthrough a central opening in the stationary base-plate and theframe-work, and a retaining nut engaging the lower end of said pivot andbearing against the under side of the framework, and a frame locatedupon the revoluble top-plate, and supporting arms pivoted thereto, and aroller j ournaled in the outer ends of said supporting arms,substantially as set forth.

6. Asupporting appliance for wood-working machinery, comprising asuitable frame-work, a base plate located upon said frame-work having acircular body-portion projecting upwardly therefrom, and having acircular groove therein, a top-plate having a circular groove in itsunder side adapted to register with the groove in the upper side of thecircular body-portion, a number of balls located in said grooves,a pivotpendent from the under side of the top-plate and passing through acentral opening in the circular base plate and through the frame-work,and having its vlower end reduced and screw-threaded, a

CHARLES O. MOOK.

Witnesses:

HARRIET E. PRICE, G. Y. THORPE.

